The symptoms of primary CNS tumors can vary widely depending on the tumor's size, type, location, and growth rate. Common symptoms include: - Headaches, often severe and persistent. - Seizures, which may be a first sign. - Nausea and vomiting, especially in the morning. - Cognitive or personality changes, such as memory loss or mood swings. - Motor and sensory deficits, like weakness or numbness on one side of the body. - Vision or speech problems, depending on the tumor's location.
